package com.zhanghe.study.collections.map;

import java.util.concurrent.ConcurrentHashMap;

/**
 * @author zh
 * @date 2021/1/28 16:15
 */
public class TestConcurrentHashMap {
    public static void main(String[] args) {
        ConcurrentHashMap<Integer,String> concurrentHashMap = new ConcurrentHashMap<>();
        concurrentHashMap.put(1,"张三");
        System.out.println(Integer.toBinaryString(0x7fffffff).length());
    }
}
